Jacquard mechanism for weaving cut-pile carpets.



J. R. BAKER & T. CHAMBERLAIN. JAGQUARD MECHANISM FOR WEAVING OUT PILEOABPETB. APPLICATION FILED JAN. 30, mos.

9 1 9,41 4. Patented Apr. 27, 1909.

2 SHEETS-SHEET 1.

COOICOOO avweul'ow John 12. flakerw rm: NORRIS PETERS ca., wAsHlucrmv,u, c,

J.- R. BAKER & T. CHAMBERLAIN. JAGQUARD MEGHANISM FOR WEAVING GUT PILEGARPETS.

APPLICATION FILED JIAN. 30, 190B. 91 9,414. Patented Apr. 27, 1909.

2 SHEETS-SHEET 2.

00 0 000 O 0 00 000 0 O G M C) O p O O O O I O O o O 0 0 0 000 000000000 000 000 0 000 00 00 0 000 000 000 000 0000 000 0000 0 000 00000000 0 000 00 000 0 -00 000N000. www wvww with 00020 I T YHE .vonmsPETERS co, WASHINGTON, n. c.

UNITED STATES PATENT QFFTQE.

JACQUARD MECHANISM FOR WEAVING CUT-FILE CARPETS.

Specification of Letters Patent. Patented April 27', 1909.

Application filed January 30, 1908. Serial No. 413,425.

To all whom it may concern:

Be it known that we, JOHN R. BAKER and THOMAS CHAMBERLAIN, citizens ofthe United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Jacquard Mechanism for VJeaving Cut-Pile Carpet,of which the following is a specification.

This invention relates to improvements in jacquard mechanism for weavingcut-pile carpet, such as velvet or lVilton for making rugs, the objectbeing to provide means by which carpets of this character can be wovenwith one-half the number of pattern cards usually used, and yet wherebywhen the breadths ,of the carpet are put together the pile will lie inthe same direction on all the readths so that the shade of each breadthwill be the same.

The invention consists in the detailed operation of preparing thesepattern cards as will be now described and specifically set forth in theclaims appended.

In the drawings Figure 1, presents diagrammatically a vertical sectionof a jacquard machine taken through the machine where the tail-cords arecrossed. l 2, is a face view of one row of a set of pattern cards in theposition which they assume on the cylinder when the first half of thecarpet or rug is being woven, and Fig. 3, is a like view of the samecards reversed on the cylinder as used for weaving the other half of thecarpet or rug.

In weaving Brussels or other uncut-pile carpets, the right border andthe right center can be woven twice and the two lengths can be turnedaround and thus become the left border and the left center. In theweaving of velvet or Wilton carpets or cut-pile car pets as they areknown, four lengths cannot be woven and then two lengths turned aroundas in Brussels because the pile would show the light shade on twolengths and a dark shade on two lengths. It has there fore beennecessary to use four sets of cards for weaving cut-pile carpets.

Our invention consists in so cutting the cards used for a Jacquard loomthat only two sets of cards need be used instead of four, the cards outaccording to our method being adapted to be turned end for end so thatthe set of cards used for the left hand border may be reversed and usedfor the right hand border, and the set of cards used for the left centerof the carpet be used for the right center.

To illustrate our invention we have shown the same as applied to aJacquard loom which is shown in Fig. 1. This -figure represents a sixframe jacquard machine, A indicating a suspending board carrying thetail-cords C which ass through the opening of the trap board and areprovided with the usual knots by means of which they are passed throughthe needle board F and are adapted to engage the pattern cards G as theypass over the cylinder H, which is provided with the usual perforationswhereby the needles can pass through the cards in the perforations ofthe cylinder. The blank portion left upon the cards causes the needlesto work backwardly and operates the tail-cords so as to lift the desiredframe or color of yarn. This is the ordinary operation of the acquardmachine and requires no further special description, as our inventiondoes not relate to the jacquard mechanism, but to the manner of cuttinthe cards or translating the pattern of tie carpet into cardperforations. The other ends of the needles are provided with guideloops through which extend the vertical pins of the needle rack I, whichis operated by the back-board J in the usual manner. A tensionboard K isarranged under the row of needles provided with the usual series ofopenings through which the tail-cords pass. Ordinarily these tail-cordsare straight, that is the first cord passes through the first hole ofthe tension-board and through the first hole of the comberboard L, butbecause of the peculiar manner in which our cards are out, thesetail-cords are required to be crossed between the tensionboard and thecoanber-board as shown in Fig. 1,,so that the second cord will passthrough the first hole, and the first cord will different color yarns orframes on their way to the reed N. The ends of the tail-cords areprovided with the usual lingos O and the cylinder is driven in anydesired manner. All these devices are those commonly 6111- ployed injacquard machines and are no part of our invention, except in so far asthe crossing of the tail-cords is necessary to the use of cards preparedby our method.

In Fig. 2, we show a row of cards G cut according to our method, that isthey are out like ordinary cards from the left end to the middle of thesection, but on the left of the middle of the section the cards are cutfrom the right hand end to the center. In other middle of the middlesection, but it Willbe 5 understood that where a set is composed of sayfour sections, two of the sections will be 1 out directly and the othertwo or right hand sections will be cut reversely after the manner Fromthis it will be seen that our method is equally applicable to setsdescribed above.

composed of either an equal number of sectlons, or an unequal number,and that when we refer to reading the pattern card or producing thepattern from the left end of the set to the middle, and then from theright end of the set back to the middle, we do not wish to be limited toany definite number of cards or 5 sections in the set.

In Fi 3 we show the same row of cards g as shown 1n Fig. 2, the cardshowever are reversed upon the cylinder, em for end and face downward,thus bringii'ig what was the left hand end of the row over to the rightj The upper or lorhand end, and viceversa.

ward edge of the row iowever remains the v F7 w 4' upper edge. whilethis would raise the frame of the proper color it would not raise j theframe in the right section of the reed and hence it is necessary wherecards made by our method are used to cross the tail-cords over that halfof the loom whose tail-cords are being actuated through theintermediation of the reversely cut cards or portions of cards, thus theleft hand side of the loom from the end to the middle will have straighttail-cords, while the other half of the loom will have crossedtail-cords. This will act to raise the proper frame of yarn in theproper section of the reed.

By the use of cards out according to our metnod, cut-pile carpet can bewoven with two sets of cards instead of four, it being only necessary toweave the left hand border and left hand center of these rugs or carpetswith 1 two separate sets of cards, and then,- turning the cards end forend. and reversing the face thereof, weaves the right hand center andright hand border.

Having thus described our invention what we claim as new and desire tosecure by Letters Patent is:

1. A jacquard machine comprising a chain or set of cards for eavingcut-pile fabrics, 1 said cards having 1 ttern punched therein from oneend to ti middle of said chain or i set of cards and reversely punchedfrom the l l l l other end backward to the middle of said row or set ofcards.

2. acquard machine comprising chain [or set of ards for Wei ng cut-piiefabrics, said cards having a p ern punched therein I from the left handend to the middie of said chain or set of cards and reversely punchedfrom the ri 'ht hand end backward to the i middle of said row or set ofcards. 3. fr jacquard machine comprising cards perforated to make up arow of set from one end to the micdlc of the row, and reverse yperforated as regards the pattern from the other end of the row, incombination *ith tension board, comber board, and tail-cords passingbetween the tension f board and the comber board, one-half of said itail-cords being crossed.

I KnnNnnL, 1 REA 1?. W RIG-HT.

